Bookbinding



H. B. MARTLING BOOKBINDING June 21, 1938.

Fil ed April 15, 19:57

all

min,

Patented June 21, 1938 UNITED STATES PATENT OFFICE BOOKBINDING Harvey B. Martling, Nashville, Tenn. Application April 15, 1937, Serial No. 137,127

9 Claims.

This invention relates to book binding and p more particularly to books bound in such manner as to permit the leaves or pages to be opened out flat or substantially flat without appreciable in p, herent tendency toclose upon themselves. Certain features of the invention'relate to improvements in the book binding disclosed and claimed in my United States Patent 2,014,973, of September 1'7, 1 935. Other features of the present inin vention are applicable moregenerally to various othertypes of book bindings.

An object of the invention is to provide a book or book binding in which the pages may be opened out flat or substantially flat with no apif) preciable tendency to close upon. themselves,

and in which the leaves or pages are firmly secured to the book back and covers.

Another object is to provide a book or book binding in which the leaves or pages are secured 20 to other parts by means of a double anchorage. A further object is to provide a book or book binding in which the leaves or pages are anchored to the covers independently of their connection to the book back. -25 Other objects will become apparent from a reading of the following description, the appended claims and the accompanying drawing,

in which: I

Figure 1 is a perspective View of a book em- 1 30 bodying the invention; v

Figure 2 is a transverse sectional view showing a book embodying the invention with the covers only in opened position and with certain parts shown as of exaggerated thickness; Figure 3 is a transverse sectional view of a book embodying the invention and in open position; and, 1

Figure 4 is a detail perspective view of a backbinding member.

The illustrated embodiment of the invention shown in the drawing includes a back generally designated A, covers B-B operatively connected or hinged to the back as at l--l, a stack of leaves 1} C provided with spaced sets of registering openings 2 adjacent the inner edges of the leaves and boundto the back and cover by means to be fdescribed. 1 1

The back Aincludes a back proper comprising an outside sheet 3 of fabric or other suitable finishing material which is extended beyond. the ,back and on to the face of the covers BB, and a stiifeningstrip 4, preferablyof fiber or other suitable material, which is gluedto the inside of ggm the sheet 3, as shown clearly in Figure 2. The

back A and covers BB constitute the book's outer structure. 1

For securing or anchoring the leaves to the back proper, there is provided a plurality of flexible retaining or attaching bands 5 threaded through the openings 2 in the sheets and anchored to the back A. In accordance with the invention, there is provided an improved backbinding member D for effecting this anchorage, the member D being shown clearly in Figures 2 "1' and 4. As shown, this improvement comprises a sheet of flexible material, preferably light fiber board or the like, which is twice-folded lengthwise of the back A with the two folds extending respectively adjacent the opposite edges of the 15 back proper As thus folded, the member is of collapsed 2 formation (the Z being shown reversed in Figures 2 and 4). The folding of the sheet to form the member D divides it into sections D D and D The right hand edge oft20 the section D asviewed in Figure 4, is glued to the adjacent edge portion of the section D so that the sections D and D are joined adjacent their edges but are free from jointure intermediate their edges. As thus joined, the sections D and D therefore constitute a flattened tube,

and. the section D constitutes a projecting wing appended to the tube.

The back-binding member is formed with openings D spaced along the fold between the-i53 sections D and D so as to register with the respective sets of openings 2 in the leaves.

The flexible attaching bands 5 preferably are embedded in the back A and in the form shown are threaded throughthe openings 2 in the ss leaves and the openings D in the'back-binding member, as shown most clearly in Figure 2. One end portion of each band 5 extends through an opening D in, the back-binding member and is glued between the adjacent edge portions of the ifl sections D and D of the back-binding member and the opposite end portion of each attaching band extends between and is glued between the other edge portionsv of the sections D and D The section D is firmly glued over its entire '45 outside 'surfaceto the stiffening strip 4, thereby anchoring the entire back-binding member D and with it the bands 5 and the leaves to the back proper.

Since the flattened tube constituted by thei 50 sections D and D of the back-binding member D is free from jointure intermediate its edges, the sections D and D are separable or relatively movable intermediate their edges, whereby flexi bility of the binding is increased, with the results that the book can be opened out very flat without any inherent tendency of the pages or leaves to close upon themselves. However, it should be observed that the section D is stiffened because of its being joined to the stiffening strip 4, as a result of which the section D of the flattened tube does most of the flexing when the book is opened. This construction, therefore, provides stiffness of the back proper but flexibility of the binding as a whole.

In accordance with a further featureof the invention, there are provided two reinforcing strips E preferably of light fabric material which are connected respectively as by glueing to the inside edge portions of the outside leaves and also to the adjacent inside edge portions of the associated covers. Each of the strips E is folded lengthwise to provide a hinge portion I, a portion 8 connected to the adjacent outside leaf and a portion 9 connected to the adjacent cover. Each strip portion .8 is formed with a plurality of spaced openings H) which register with the openings 2 in the leaves and each portion 9 is formed with a plurality of openings II which are aligned with the openings I9 and spaced therefrom transversely of the book. The attaching bands 5 extend through theopenings It, thence across the'hinge portions I, thence through the openings II in the strip portions 9, and thence to the back-binding member D, to which they are anchored, as previously described.

The passage of the bands 5 through the spaced openings in the reinforcing strips E provides for anchoring the leaves to the book covers B independently of their anchorage to the back A,

so'that if the back should become damaged, the

leaves still would be securely connected to the covers B. It will be observed that the bands 5 provide for dual anchorage of the leaves to the covers and to the back. The arrangement providing the dual anchorage is strong and durable and yet does not interfere with the flexibility and flat opening properties of the book considered as a whole. Preferably, the portions 9 of the reinforcing strips are glued under the trimmingor inside facing sheets l2 of the covers as fishown at l3. Preferably the extreme inner edges of the leaves are glued to the section D of the member D, as shown at I i in Figure 2. 7

The book disclosed for the purposes of illustration embodies the invention in a practical and the now preferred form, but'it is apparent that the specific construction and relative arrangement of the parts may be modified without departing from-the invention as defined in the claims. 1

I claim: I

1. In a book, the combination of a back; covers operatively connected to said back; a stack of leaves including outside leaves and intermediate leaves formed with registering openings adjacent their inner edges; a reinforcing strip connected to one of saidoutside sheets adjacent its inner edge and connected to the inside inner edge of the adjacent cover, said strip having a hinged portion between its connections to said outside leaf and said cover, and said-strip being formed with spaced openings on opposite sides v of said hinged portion respectively and aligned with the openings in said leaves; and attaching means passing through the openings in said leaves and in said reinforcing strip and being secured to said back. 7

2. In a book, the combination with an outer structure comprising a back; covers operatively connected to said back; of a stack of leaves including outside leaves and intermediate leaves formed with registering openings adjacent their inner edges; reinforcing strips respectively connected to said outside sheets adjacent their inner edges and connected to the inside inner edge portions of the respectively adjacent covers, each of said strips having a hinged portion between its connections to the associated leaf and cover and each said strip being formed with spaced openings on opposite sides of said hinged portion respectively and alined with the openings in said leaves; a flexible attaching band; means securing said band to said outer structure, said flexible attaching band passing through the openings in said leaves and the openings in said reinforcing strips and thereby anchoring said leaves to said outer structure.

3. In a book, the combination of a back; covers operatively connected to said back; a stack of vleaves including outside leaves and intermediate leaves formed with registering openings adjacent their inner edges; reinforcing strips respectively connected to said outside sheets adjacent their inner edges and connected to the inside inner edge portions of the respectively adjacent covers, each of said strips having a hinged portion between its connections to the associated leaf and cover and each said strip being formed with spaced openings on opposite sides of said hinged portion respectively and aligned with the openings in said leaves; a flexible attaching band passing through the openings in said leaves and the openings in said reinforcing strips and thereby anchoring said leaves to said covers; and means anchoring said band to said back independently of said covers.

4. In a book, the combination of a back; covers operatively connected to said back; a stack of leaves including outside leaves and intermediate leaves formed with registering openings adjacent their inner edges; a reinforcing strip of flexible material connected to one of said outside sheets adjacent its inner edge and connected to the inside inner edge of the adjacent cover, said strip being folded to provide a hinged portion between its connections to said outside leaf and said cover, and said strip being formed with spaced openings on opposite sides of said hinged portion respectively and aligned with the openings in said leaves; and attaching means passing through the openings in said leaves and in said reinforcing strip and being secured to said back.

5. In a book, the combination of a back; covers operatively connected to said back; a stack of leaves including outside leaves andintermediate leaves formed with registering openings adjacent their inner edges; a reinforcing strip glued to one of said outside sheets adjacent its inner edge and glued to the inside inner edge of the adjacent cover, said strip having a hinged portion between its connections to said outside leaf and said cover, and said strip being formed with spaced openings on opposite sides of said hinged portion respectively and aligned with the openings in said leaves; and attaching means passing through the openings in said leaves and in said reinforcing strip and being secured to said back. I

6'. Ina book, the combination of a back; covers operatively connected to said back; a stack ofleaves including outside leaves and intermediate leaves formed with registering openings adjacent their inner edges; a reinforcing strip connected to one of said outside sheets adjacent its inner edge and connected to the inside inner edge of the adjacent cover, said strip having a hinged portion between its connections to said outside leaf and said cover, and said strip being formed with spaced openings on opposite sides of said hinged portion respectively'and aligned with the openings in said leaves; and a flexible attaching band passing through the openings in said leaves and in said reinforcing strip and being embedded in said back.

7. In a book, the combination of a back proper, a stack of leaves; a back-binding member comprising a strip of sheet material twice folded lengthwise and shaped to form a flattened tube with a projecting wing appended thereto, one outer face of said member being secured to the back proper and theother outer face thereof abutting the inner edges of said leaves, mutually adjacent inner faces of said member being free from jointure to each other whereby to permit relative movement therebetween; and means for binding said leaves to said back proper, said means being partly embedded between the first said outer face of the tube and said projecting wing.

8. In a book, the combination of a back proper,

a stack of leaves provided with mutually regis-' tering openings adjacent the edges to be bound; a back-binding member comprising a strip of sheet material twice folded lengthwise and shaped to form a flattened tube, one outer face of said member being secured to the back proper and the other outer face thereof abutting the inner edges of said leaves, mutually adjacent inner faces of said member being free from jointure to each other whereby to permit relative movement therebetween; and means for binding said leaves to said back proper, said means comprising a band of flexible material passing through the registering openings in said leaves and being anchored to said back proper.

9. In a book, the combination of a back proper, a stack of leaves provided with mutually registering openings adjacent the edges to be bound; a back-binding member comprising a strip of sheet material twice folded lengthwise and shaped to form a flattened tube, one outer face of said member being secured to the back proper and the other outer face thereof abutting the inner edges of said leaves, mutually adjacent inner faces of said member being free from jointure to each other whereby to permit relative movement therebetween; means for binding said leaves to said back proper, said means comprising a band of flexible material passing through the registering openings in said leaves, means anchoring said band to said back-binding member, and a reinforcing strip glued to the inner edge portion of one outside leaf of said stack and being glued to the adjacent inner inside edge portion of the adjacent cover, said reinforcing strip being formed with two spaced aligned openings, one of which registers with the openings in said leaves, said band passing through both the openings in said reinforcing strip.

HARVEY B. MART LING. 

